An interpretation of the failure paths of roughened metal/polymerinterfaces |
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Authors: | Ho-Young Lee Jianmin Qu |
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Affiliation: | (1) Packaging Research Center, Georgia Institute of Technology, 813 Ferst Drive, NW, 30332-0506 Atlanta, GA, U.S.A. |
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Abstract: | Roughening of metal surfaces enhances the adhesion strength of metal to polymer by mechanical interlocking and this often
produces cohesive failure. In a previous work 1], an adhesion study on a roughened metalpolymer system was carried out, and
the correlation between adhesion strength and failure path was investigated. In the present work, the correlation between
failure path and microstructure of metal surfaces before molding was studied. The results showed that the variation in failure
path could be explained by introducing a simple adhesion model developed from the theory of the fiber reinforcement of composite
materials. It is believed that this model can be extended to other similarly roughened metal-polymer systems. |
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Keywords: | metal/polymer interface roughening mechanical interlocking failure path adhesion model |
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